Form 4 for ACU ACME UNITED CORP

Accepted 2026-03-03 00:00:00 ET · period of report 2026-02-27 · accession 0001193125-26-088335 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
D	2026-03-03	2026-02-27	ACU	OLSCHAN BRIAN S	Pres, COO, Dir	D - Sale to Iss	$45.88	-15.0K	41.2K	-27%	-$688.2K
D	2026-03-03	2026-02-27	ACU	OLSCHAN BRIAN S	Pres, COO, Dir	M - OptEx	$24.92	+15.0K	56.2K	+36%	+$373.8K
D	2026-03-03	2026-02-27	ACU	OLSCHAN BRIAN S	Pres, COO, Dir	M - OptEx	$24.92	-15.0K	241.7K	-6%	-$373.8K
D	2026-03-03	2026-03-02	ACU	OLSCHAN BRIAN S	Pres, COO, Dir	A - Grant	$44.77	+20.0K	261.7K	+8%	+$895.4K

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock	2026-02-27	D	D	15,000	$45.88	41,209	D	—	—	(F1) The exercise of the subject option was effected on a net cash settlement basis in a transaction directly with the issuer not involving the actual issuance of any shares of the underlying common stock.
2	Common	Common Stock	2026-02-27	M	A	15,000	$24.92	56,209	D	—	—
3	Derivative	Employee Stock Option	2026-02-27	M	D	15,000	$24.92	241,700	D	$24.92 · 2019-10-16 to 2027-10-16	15,000 Common Stock
4	Derivative	Employee Stock Option	2026-03-02	A	A	20,000	$44.77	261,700	D	$44.77 · 2030-03-02 to 2036-03-02	20,000 Common Stock	(F2) 5,000 shares will vest on March 2, 2027. 5,000 shares will vest on March 2, 2028. 5,000 shares will vest on March 2, 2029. 5,000 shares will vest on March 2, 2030.